BMW 3 Series E90 1 320si N45 M Sport Front Left N/S Spring Strut Brake Caliper

BMW E90 320si N45 Left Sport Strut and Spindle Assembly is a complete, sporty front suspension component designed for the driver's side front axle. The assembly combines the functions of a shock absorber and a spindle, which simplifies replacement and restores proper suspension geometry in BMW 3 Series E90 320si models with the N45 engine. This solution allows for efficient repair of the running gear while maintaining the factory handling characteristics.

Specifications and technical data

• SKU: 8036553-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8036553
• Substitutable numbers: 31318036553, 8036553, 31216793923, 6793923, 34116769091, 6769091, 34116854998, 6854998, 31216764443, 6764443, 34116764643, 6764643, 34116772669, 6772669, 311 405
• Location on the vehicle: Front, Left
• Category: Suspension Component Replacement Kits

Purpose and Function in Suspension

The presented component belongs to the Suspension Replacement Kits category and is dedicated for installation on the front left side of the vehicle. The combination of the shock absorber and spindle ensures a rigid, stable mounting for the wheel hub, brake caliper, and steering system components, which directly impacts steering precision and driving safety.

The SPORT version has been designed for a more dynamic suspension performance. Appropriately selected stiffness and travel of the shock absorber support body stability at higher speeds, reduce body roll in corners, and improve the car's response to steering inputs.

Benefits of Using a Complete Strut and Spindle Assembly

Using a complete shock absorber-spindle assembly in the BMW E90 320si offers a number of practical advantages:

• easier maintenance of correct front axle geometry after repair,
• consistent suspension performance on the left side,
• reduced risk of play resulting from the connection of multiple separate components,
• faster service process due to fewer assembly operations.

For the driver, this means more predictable car behavior, better tire contact with the road surface, and higher stability during braking and cornering. Combined with appropriate tires, the sporty character of the suspension allows for full utilization of the N45 engine's potential in the 320si version.

Product Characteristics and Condition

The offered component comes from the BMW range and is intended for use as a replacement part in the factory suspension system. The product is used, which in practice means the possibility of an economical repair while maintaining the original design and fit for the E90 body. This type of solution is particularly attractive for accident repairs or restoring the car to full functionality after mechanical suspension damage.

A disassembled strut and spindle assembly allows for the preservation of correct mounting points for control arms, tie rods, and brake system components, which facilitates subsequent alignment of toe and camber angles.

Application in BMW Tuning and Sport Repairs

The SPORT version fits well with the needs of users who expect more direct steering and stiffer suspension response in the BMW E90 320si. It can be used in both routine repairs and sport-oriented projects where steering precision and quick response to load changes are a priority. A properly selected front left shock absorber is crucial for maintaining a balance between comfort and vehicle control.

If you are planning a comprehensive repair or upgrade of the front suspension area in your BMW and need other parts from the same category, such as shock absorber struts, springs, or complete mountings, check the available parts in the BMW Suspension Replacement Kits category.

Why Consider a Used Suspension Component

Choosing a used strut and spindle assembly is a sensible compromise between cost and maintaining the vehicle's original specifications. In many cases, this allows for restoring full suspension functionality without the need to invest in expensive new components, while preserving the factory design and mounting points.

If you want to better understand how to effectively use second-hand components in premium and sports cars, it is worth reading the article on our blog: Audi on Used Parts – Tuning and Repairs Without Quality Loss. Although the description concerns a different brand, the principles of selecting and evaluating used suspension components discussed there are also helpful for operating BMWs.

Additionally, if you are considering different service strategies and want to compare the advantages of new and used components, check out the guide Car Parts – New or Used? Comparing Costs, Quality, and Durability, which will help you choose the optimal solution for your driving style and budget.